LCDR A class

The LCDR A class was a class of 0-4-4T steam locomotives of the London, Chatham and Dover Railway. The class was designed by William Kirtley and introduced in 1875. The A1 and A2 classes were similar, but had larger driving wheels.[1] The differences between the A1 and A2 classes were minor: in particular, the A2 class had a larger heating surface.[2]

LCDR A class
LCDR A1 and A2 classes
Type and origin
Power typeSteam
DesignerWilliam Kirtley
Build date1875–1884
Total produced
  • A: 18
  • A1: 12
  • A2: 6
Specifications
Configuration:
​
 • Whyte0-4-4T
 • UICB2′ n2t
Gauge4 ft 8+1⁄2 in (1,435 mm)
Driver dia.
  • A: 5 ft 3 in (1.600 m)
  • A1/A2: 5 ft 6 in (1.676 m)
Trailing dia.3 ft 0 in (0.914 m)
Loco weight51 long tons (51.8 t)
Fuel typeCoal
Fuel capacity2 long tons (2.0 t)
Water cap.970 imp gal (4,400 L; 1,160 US gal)
Firebox:
 • Firegrate area		16+1⁄2 sq ft (1.53 m2)
Boiler:
​
 • Tube plates
  • A: 11 ft 3 in (3,430 mm)
  • A1, A2: 11 ft 0 in (3,350 mm)
 • Small tubes
  • A: 202 x 1+3⁄4 in (44 mm)
  • A1: 197 x 1+3⁄4 in (44 mm)
  • A2: 199 x 1+3⁄4 in (44 mm)
Boiler pressure150 psi (1.03 MPa)
Heating surface
  • A: 1,148+1⁄2 sq ft (106.70 m2)
  • A1: 1,087 sq ft (101.0 m2)
  • A2: 1,095 sq ft (101.7 m2)
 • Tubes
  • A: 1,051 sq ft (97.6 m2)
  • A1: 993 sq ft (92.3 m2)
  • A2: 995 sq ft (92.4 m2)
 • Firebox
  • A: 97+1⁄2 sq ft (9.06 m2)
  • A1: 94 sq ft (8.7 m2)
  • A2: 100 sq ft (9.3 m2)
CylindersTwo, inside
Cylinder size
  • Originally: 17+1⁄2 in × 26 in (444 mm × 660 mm)
  • Rebuilt: 18 in × 26 in (457 mm × 660 mm)
Valve gearStephenson
Performance figures
Tractive effort
  • A: 17,049 lbf (75.8 kN)
  • A1/A2: 16,274 lbf (72.4 kN)
Career
OperatorsLCDR · SECR · SR
ClassA, A1, A2
Number in class1 January 1923:
A, 17; A1, 12; A2, 6
Withdrawn1915–1926
DispositionAll scrapped

Numbering
Table of locomotives[3]
Class Manufacturer Serial nos. Date built LCDR nos. SECR nos. Notes
A Neilson & Co. 1988–1996 Jul – Oct 1875 101–109 560–568
A Vulcan Foundry 750–755 Aug – Nov 1875 110–112, 65–70 569–571, 524–529 No. 570 withdrawn 1915
A1 Kitson & Co. 2300–2311 Feb – May 1880 163–174 622–633
A2 Robert Stephenson & Co. 2491–2496 Sep 1883 – Feb 1884 75–80 534–539

Ownership changes

All the A, A1 and A2 class locomotives passed to the South Eastern and Chatham Railway in 1899. Number 570 was withdrawn in 1915 but the remaining locomotives passed to the Southern Railway in 1923. All had been withdrawn by 1926.

Table of withdrawals
YearQuantity in
service at
start of year		Quantity
withdrawn		Locomotive numbersNotes
1915361570
1923354A526, A561, A566, A623
19253114A524, A525, A527–A529, A560, A564, A569, A535, A537, A538, A622, A624, A628
19261717A562, 563, 565, 567, 568, 571, 534, 536, 539, 625–627, 629–633

References
  1. Casserley & Johnston 1974, p. 9.
  2. Bradley 1979, p. 81.
  3. Bradley 1960, pp. 32–33.
  • Bradley, D. L. (1960). The Locomotives of the London Chatham and Dover Railway. RCTS.
  • Bradley, D.L. (March 1979) [1960]. The Locomotive History of the London, Chatham & Dover Railway (2nd ed.). London: RCTS. ISBN 0-901115-47-9. OCLC 59838998.
  • Casserley, H. C.; Johnston, S. W. (1974). Locomotives at the Grouping 1, Southern Railway. Ian Allan, Limited. ISBN 0-7110-0552-4.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.